package com.atguigu.exer;

public class Exer1 {
    public static void main(String[] args) {
        Circle c1;
        c1 = new Circle();
        c1.redius = 3;
        System.out.println(c1.area());

        Circle c2 = new Circle();
        c2.redius = 4;
        System.out.println(c2.area());

    }
}
